13 best drill bit for steel wool

Product description

Forney 72729 Wire Cup Brush, Coarse Crimped with 1/4-Inch Hex Shank, 2-Inch-by-.012-Inch

• Ideal for light duty cleaning action
• Typical applications include removal of dirt, rust, paint, scale and weld spatter
• For use with any 1/4" diameter electric power drill or pneumatic (air) drills
• Diameter: 2" (50.8 millimeters)
• Shank: 1/4" (6.35 millimeters)
• Material: Steel
• Hex wire size: .012" (.304 millimeters)

User questions & answers

Question:	Can this be used to clean drain part of a toilet bowl? 2 Is there a 12" extension that can be purchased
Answer:	This brush enabled me to salvage some large tools that had rusted due to damp weather..did the job I tackled..
Question:	Can i used this to clean disc brake
Answer:	Hello! Yes this could be used to remove old finish from a door, however it might be slightly too aggressive for wood if you plan to use a high-speed air drill. Thank you for your question!
Question:	Could it be used to remove old finish from a wood front door
Answer:	The bristles on this 72729 cup brush are made from low carbon steel. Thank you for your question.
Question:	What are the bristles made from m, what kind of metal
Answer:	No, unfortunately there is no replacement brushes available.

Product features

Forney 72729 Wire Cup Brush, Coarse Crimped with 1/4-Inch Hex Shank

Ideal for light duty cleaning action. Typical applications include removal of dirt, rust, paint, scale and weld spatter. For use with any 1/4" diameter electric power drill or pneumatic (air) drills.

Product Specifications:

• Diameter: 2" (50.8 millimeters)
• Shank: 1/4" (6.35 millimeters)
• Material: Steel
• Hex wire size: .012" (.304 millimeters)
• Maximum revolutions per minute (RPM): 6,000
• Tool type: For use with any 1/4" diameter electric power drill or pneumatic (air) drills

Product description

Forney 72732 Wire cup brush, fine crimped with 1/4-inch hex shank, 3-inch-by-. 008-inch

• Adds extra shine to your product
• Crimped Wire cup brush, fine, 1/4Hex shank,
• Manufactured in China
• Designed for easy access into narrow holes and confined areas
• Crimped style for light to medium duty applications
• Removes rust, scale and paint in hard to reach areas
• 1/4-inch (6. 35-Mm) hex shank

User questions & answers

Question:	Where is this made
Answer:	Civilized
Question:	What are the bristles made of? (e.g. 304 stainless steel, etc
Answer:	It would fit several. No..it's for a big doll.
Question:	Can you use this attachment on an angle grinder
Answer:	No, the footrests are not adjustable.

Product description

Drill America KFD 15 piece 135 degrees split point heavy duty drill bit set comes in a metal case. Manufactured from premium grade High-Speed Steel, Killer Force Drills have a heavy duty 135 split point for self-centering and reducing thrust. Gold and black surface treated for use in stainless steel and other hard metal drilling. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. Set include fractional sizes: 1/16" to 1/2" (1/32 Increments).

• High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
• Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
• Round shanks allow use with a wide variety of toolholding systems
• When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
• 15 piece drill bit set comes in a metal case

User questions & answers

Question:	no indication of what sizes the bits are? (5/8, 3/4, what sizes
Answer:	The body is 6" long by 3/4 in circumference, V= h x pi x r2= 2.656 in= 43.524 cc best guess

Product features

135 Degree Split Point Tip

KFD Killer Force Drill Bits have a 135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you.

Black and Gold Finish

KFD Killer Force Drill Bits are black and gold surface treated for use in stainless steel and other hard metal drilling.

Product description

DEWALT's titanium drill bits have a titanium coating that provides longer life when drilling in non-ferrous metals. These bits are also suitable for drilling in wood and plastic and are ideal for commercial and residential applications. Includes sizes from 1/6 inch to 1/2 inch in a plastic tough case.

• Titanium pilot point for longer bit life
• Starts on contact for cleaner holes
• No spin shanks. Clip latch for secure closing
• Tapered web provides greater durability to reduce breaking
• Includes sizes from 1/16 inch to 1/2 inch in a plastic tough case

User questions & answers

Question:	can the bits be used on metal and wood
Answer:	Yes they can be used on both metal and wood, but depends on what kind of metal. The description says that they provide longer life when used with "non-ferrous" (non-magnetic) metals (such as aluminum). The bits would wear out fairly quickly if used on other types of metals.
Question:	Can these be used to drill in concrete
Answer:	Not a concrete drill. Not much of a drill at all from the couple of times I have used these. Drill one hole and the tip is GONE! Terrible product.
Question:	would using cutting fluid for drilling into
Answer:	When drilling into metal especially thick metal. Cutting oil is always recommended. Unless you have several drill bits to ruin laying around.
Question:	are these hex shank bits
Answer:	Of the 4 sets in this kit, 3 sets are hex shank. DEWALT DWA2FTS100 Screwdriving and Drilling Set, 100 Piece AMZN reuses questions and answers on similar items.

Product description

Bore Brush Set, Brush Length 2 In., Bristle Material Stainless Steel, Handle Length 1-3/4 In., Overall Length 3-3/4 In., Handle Type Hex, Trim Length 3/4 In., Handle Material Stainless Steel, Color Coding System No

• Durable stainless steel abrasive bore brushes
• Use on ports, tubes, bearings and other common wire brush applications
• Package Dimensions: 4.572 L x 14.732H x6.858W(centimeters)
• Made in: United States

User questions & answers

Question:	What are the brush diameters
Answer:	The Mountain morph is designed for mountain bike tires that are larger and run lower pressure, so it has a larger diameter to give more air per stroke. The road morph pump is a smaller tube so delivers less air per stroke but will allow you to generate higher pressure for the same amount of arm power. I'm not sure of the exact specs. I use the Mountain Morph on 700c x 32 touring tires and can get them to about 90 psi. If I had to go higher pressure it would be hard and I would probably wish for the road pump. I've had this pump for several years now and it is holding up very well. Hope this helps.
Question:	Need to drill two holes in a Japanese saw blade that is hardened steel. Will these work
Answer:	Yes, the pump comes with a very secure bottle cage mount.
Question:	Does this set come in a case
Answer:	no idea where it's made. i've had mine a few years and treated it roughly and it's still good and works.
Question:	looking at Artu 5pc. multi-purpose drill bit set on sale $13 .What size are the bits
Answer:	Yes it does. Tight, but still fits.

Product description

Committed to Quality, Consistency, Service and Value QUALITY at Viking Drill and Tool begins with the finest tool steel we can buy and ends with the world class products in our catalog. Our cutting tools are designed, engineered and superbly crafted to provide long lasting durability. Our 74,000 square foot St. Paul, Minnesota manufacturing facility is specifically designed for the unique task of efficient high quality cutting tool manufacturing. CONSISTENCY is a natural by-product of our experience and dedication to quality. At Viking Drill and Tool, skilled machine operators working with the world's finest raw materials have the capability of providing you with consistent high quality products time after time, year after year. On our Ultra Bor Super Premium products, we routinely cut recognized tool tolerance standards by one half to insure that our customers receive drills manufactured to the tightest possible specification and utmost in consistency and accuracy. All materials used at Viking Drill and Tool meet the rigorous qualifications of National Aerospace Standard (NAS) 907. This standard, recognized as the most stringent in the industry precludes the use of lower quality steels which do not hold up under rigorous applications. The use of these extreme high quality materials insures that consistency is built in to every one of our U.S. manufactured products. Our extensive selection of U.S. manufactured tools is designed to give you the right tool at the right price for whatever tough job you come up against.

• 29 pc. Set Premium High Speed Steel Heavy Duty NAS 907B 135-Degree Split Point
• 135-Degree Split Point, 1/16 - 1/2 by 64ths
• Precision ground point, flutes, body, clearance and drill diameter for ultimate accuracy and performance
• Special Hi-Molybdenum tool steel/ Gold Oxide
• NAS 907B Heavy Duty Jobber

User questions & answers

Question:	Whats the sizes? I need a 9/16th hole
Answer:	No this is 1/16 to 1/2 by 64ths
Question:	Are there places to buy individual replacement bits
Answer:	Good morning...it depends on the part number. There are some Viking bits that are sold individually, but for the most part, the bits are sold in package quantities. Thank you, Henry M. Bolden
Question:	Are these SAE or metric
Answer:	In the description it reads the bit sizes range from 1/16 to 1/2 inch by 64ths. This would indicate that it's not metric. Reading the description really can help one understand what one is dealing with.
Question:	What is the best method for sharpening these
Answer:	I like the Drill Doctor

Product description

Use of high quality wire steel to stand up to tough applications. Removal of rust and paint on wood and metal. Surface preparation for painting. Metal finishing and polishing.

• Use of high quality wire steel to stand up to tough applications
• Removal of rust and paint on wood and metal
• Surface preparation for painting
• Metal finishing and polishing

User questions & answers

Question:	Where is this manufactured (what country) USA
Answer:	Very good shoes
Question:	Does this work with an angle grinder
Answer:	No it doesn't have a gauge.
Question:	good for paint on brick
Answer:	I use a Topeak Mountain Morph (high volume) for my Fatbike. It takes me about 120 pumps to fill a 4"X26 bicycle tire to 7 PSI. I'm sure the Mountain Morph would work for your needs if you have the patience.
Question:	Max rpms
Answer:	At first I didn't think Presta worked, because I just reversed the inner rubber adapter. But you also need to reverse the plastic pin piece underneath (that's also hard to get out). Once I reversed both parts, the pump worked fine with my Presta valves. (I had to look this up on the Topeak web site.)

Product description

DEWALT DWA2T40IR 40 Piece Impact Ready Screw driving Set is part of the DEWALT Flexor line of power tool accessories. Flexor allows bits to flex up to 15 degrees which equals increased durability and reduced breakage for longer bit life. This set allows you to maximize you Impact ready system. It features a 10x Magnetic Screw Lock System for strong fastener retention and is preferred by professionals everywhere. The bits are placed directly in the impact driver; No run out and allows for access areas. It also minimizes drops and reduces wobbling. This set features a full range of sizes, from 2 inch to 6 inch screw driving bits and are removable to be used across a full bit set. These bits are durable and jobsite tough. Set includes: 3/8" Untested, 1/4" Untested, 5/16" Untested, Impact Ready Sleeve, 3" Impact Ready Screw Lock Holder, 2" PH2 Impact Ready Bits, 2" SQ2 Impact Ready Bit, 2" T25 Impact Ready Bit, 2" SL8 Impact Ready Bit, 1" PH2 Bits, 1" SL8 Impact Ready Bits, 1" SL6 Impact Ready Bit, 1" PH1 Impact Ready Bit, 1" PH3 Impact Ready Bit, 1" SL10 Impact Ready Bit, 1" PH2, 1" T15 Impact Ready Bit, 1" T20 Impact Ready Bit, 1" T25 Impact Ready Bit, 1" T30 Impact Ready Bit, 1" SQ2 Impact Ready Bits, 1" SQ3 Impact Ready Bit, 1" SQ1 Impact Ready Bit, 3.5" PH2 Impact Ready Bit.

• Minimizes drops
• Reduces wobbles & breakage
• FlexTorq allows bits to flex up to 15 degrees
• 10x magnetic screw lock system
• Minimizes drops and reduces wobbling
• Reduces breakage and longer life

User questions & answers

Question:	Can I use this with regular drill (not an impact driver
Answer:	YEP! In fact, I use the speed loader to make using my regular drill/driver faster. The Magnet holds the different bits I'm going between.
Question:	are the individual bits magnetic
Answer:	The individual bits are not magnetic. The 1/4' and 5/16" adapters, the bit extender, and of course the magnetic screw holder are. If you use any of these (except the 5/16" adapter) with the bits, then the bits will exhibit magnetic characteristics as well.
Question:	where is made
Answer:	Holder and socket adapter made in Taiwan. The rest is made in Vietnam.
Question:	This may sound really dumb, but how does one remove a bit from the magnetic holder that was in its own bubble, the "magnetic screw lock sleeve
Answer:	I just got mine today. That bit pulls out from the back. I had to wiggle it around quite a bit, and then it came out. It gets easier after you do it a few times. It took me a minute to figure out how to use it. The bits push in from the back, you only use the long bits. It only made sense once I put it in my screw gun. The sleeve slides back on the bit enough to expose the tip. Then you can put a screw on it, and the magnet/sleeve holds the screw in place. That's their theory at least lol. I haven't tried it yet. It seems a little awkward, but I guess you could get used to it if you're putting in a bunch of screws.

Product features

DEWALT DWA2T40IR Impact Ready FlexTorq Screw Driving Set, 40-Piece

Designed for tough jobsite duties, the Impact Ready bits deliver the power, precision and dependability required to handle even the toughest jobs. Complete with an assortment of various bit tips and sizes commonly used on the jobsite, this bit set is the ultimate resource for any handyman, professional or DIYer.

Product description

DEWALT's titanium drill bits have a titanium coating that provides longer life when drilling in non-ferrous metals. These bits are also suitable for drilling in wood and plastic and are ideal for commercial and residential applications. The speed tip design reduces walking on start, and the no spin keeps the bit secure in the drill. Includes 21 bits sized from 1/16 to 1/2-Inch in a plastic tough case.

• Speed Tip Reduces Walking
• Ideal for drilling in metal, wood, and plastics
• No spin shanks
• Includes tough case container to keep bits organized
• Titanium Coating for Longer Life
• Bit case may differ from what is shown

User questions & answers

Question:	My drill has a hard time clamping down on the small diameter of the drill bits. What do I use to fix
Answer:	I have a drill with a chuck key and you can get a good grip. The hand tightening chucks don’t work as well
Question:	Can you drill into concrete slab with these bits
Answer:	No you need concrete bits
Question:	Do these work on Black and Decker impact driver as well
Answer:	Any drill chuck it does not work on impact driver but they do make them I have both.
Question:	whats the difference with these and the black oxide set? which is better
Answer:	Titanium bits will work for metal drilling whereas Black Oxide sets are recommend for only wood or plastic.

Product features

DEWALT DW1342

Speed Tip Reduces Walking

Ideal for drilling in metal, wood, and plastics

No spin shanks

Includes tough case container to keep bits organized

Titanium Coating for Longer Life

Product description

Drill America KFD29J-PC KFD 29-Piece High-Speed Steel Drill Bit Set contains 29 high-speed steel KFD series Killer Force Drill Bits. Sizes 1/16" - 1/2" x 1/64" increments Sizes: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64" and 1/2". Drill America KFD29J-PC KFD Drill Set comes in a unique round drill index that combines form and function into 1 beautifully designed, easy to carry drill set. The shatter proof, water resistant case fits easily, anywhere you need it. Effortlessly grip the set in 1 hand as you would a travel coffee mug, leave it in the cup holder of your truck while on the way to your job or hang it on your belt when all hands are on deck. KFD Killer Force Drill Bits are manufactured from M2 premium grade high speed steel. For use in a wide range of materials in the iron and steel families such aluminum, iron, stainless steel and other hard metal drilling. KFD Killer Force Drill Bits have a 135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. KFD Killer Force Drill Bits are black and gold surface treated for use in stainless steel and other hard metal drilling.

• Assortment of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments
• High-speed steel (HSS) provides hardness for wear resistance
• Black and gold oxide finish resists corrosion and increases the hardness of the drill bit
• Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
• Comes in a plastic storage case

User questions & answers

Question:	Will this product drill through hardened steel? I'm tired of buying bits that say so but go through only mild steel
Answer:	66820 is a set with Mechanics length bits with tri-flat sides. They are shorter lengths vs the longer 44170 Jobber length w/o the tri-flat sides. Tri-flat sides prevent the bits from slipping in a drill chuck. We have seen this preferred in some cases and not by others. Depends on the user and application.
Question:	Can these be sharpened if they become dull
Answer:	The cutter wheel uses diamonds, so it will sharpen the bit. Follow the instructions on the Drill Doctor, and you will be fine.
Question:	how long are they
Answer:	my black case is round.JNW
Question:	How long is the warranty
Answer:	no they do not have 3 flats

Product features

All The Bits You Need

29 Piece Sets includes fractional sizes from 1/16" to 1/2" by 1/64" increments.

Hang for Quick Access

When all hands are on deck, hang the drill index on your belt whether you're in the shop or field.

Easy to Handle Plastic Case

Unique round drill index combines form and function into one beautifully designed, easy to carry drill set.

Fits Anywhere You Need It

Effortlessly grip the set in one hand as you would a travel coffee mug or leave it in the cup holder of your truck while on the way to a job.

135 Degree Split Point Tip

KFD Killer Force Drill Bits have a 135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you.

Product description

There are hundreds of uses for steel wool, and with 8 different grades to choose from, you’ll always find the right one for your job. Available in a convenient 8 or 16 pack, steel wool pads are ideal for most household chores, hobbies and projects. The super fine grade is for final finishes; the extra fine grade for buffing and polishing furniture; the very fine for metal polishing; the fine grade for smoothing and finishing; the medium grade for general purpose uses; the medium coarse grade for surface preparation; the coarse grade for paint/varnish removal and the extra coarse grade for heavy duty jobs. Click on the Red Devil link at the top of this page to see more quality products from Red Devil.

From the Manufacturer

Red Devil Super Fine Steel Wool is ideal for most household chores, hobbies and projects. The super fine grade is for final finishes. The handy size is just the right amount for small jobs.

• Smooth shellac, lacquer or varnish before final top coat
• Buff furniture & woodwork - rubs out a high luster finish
• Clean windows & glass without water or cleaners
• Remove rust from chrome
• Clean hand tools
• Handy size
• Ideal for most household chores and projects
• Use for final finishes

User questions & answers

Question:	Is this fine enough to quickly Ignite and burn
Answer:	There is no country of origin etched on it. If you are concerned about the quality; it's very well made. One thing however. I had to cut the tang off for it to fit my lathe.
Question:	I want to use it to block openings to keep out mice and rats.. What grade would be best
Answer:	You need a #33 jacob arbor on one and #2 or 3 MT on the other. Got mine on Amazon. If you have the old chuck u can r&r it...
Question:	I am looking for a steel wool that will rust quickly when placed in vinegar (weathering new wood). Is this actually steel or synthetic
Answer:	I think these are comfortable in most applications..if you mean hiking in actual sand like on a beach i would imagine you would get sand over the top and would need gaiters...if that is what you are asking about. In general these are fairly light, and I find them very comfortable on pretty much any surface
Question:	Does it come from steel sheep
Answer:	Normal width...not wide with.

Product features

Steel Wool

There are hundreds of uses for steel wool, and with 8 different grades to choose from, you’ll always find the right one for your job. Available in a convenient 8 or 16 pack, steel wool pads are ideal for most household chores, hobbies and projects. The super fine grade is for final finishes; the extra fine grade for buffing and polishing furniture; the very fine for metal polishing; the fine grade for smoothing and finishing; the medium grade for general purpose uses; the medium coarse grade for surface preparation; the coarse grade for paint/varnish removal and the extra coarse grade for heavy duty jobs.

Product description

A high quality 13 piece Torx Bit Socket and E-Socket Set. This Torx set features with heavy duty construction. Chrome Plated and Mirror Polished. 1/4-Inch drive: T8, T10, T15, T20, T25, T27, T30 x L 37mm. 3/8-Inch drive: T40, T45, T47, T50, T55 x L48mm.

• Classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal
• 135° split point and two flute design increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily
• Tri flatted shank fits into power tools chuck securely and eliminates slip
• Set comes with a sturdy blow molded case
• Set includes: Drill Bit #1 (10 step sizes): 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8”; Drill Bit #2 (12 step sizes): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8; Drill Bit #3 (9 steps): 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"; Drill Bit #4 (13 steps): 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"; Drill Bit #5 (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"

User questions & answers

Question:	I just bought this kit and one of the bits came with a totally rounded shank but the others have a flat side on it, is it normal
Answer:	These are High Speed Steel Cobalt Coating.
Question:	Are these HS titanium coated ? Thank you
Answer:	They sell them at sears http://www.sears.com/neiko-5-piece-step-drill-bit-set/p-SPM5125841201Pthey say Reg Price: $77.99 Savings: $37.00 price $40.99 made in Imported (Taiwan)
Question:	What is the country of origin of this set of step up bits
Answer:	Sadly to say that it does not hold up to stainless steel. I am an Exterior Electrician and ordered a bunch of these for my guys to use out in the field. It did not work on our Exterior panels nor on our Transformers the first, second or third time. The bits gave out and dulled as soon as they started drilling. We ended up purchasing high end step-bits we've ordered before and they worked well. I did a trial with these bits and ended up short on the winning end.
Question:	Do these hold up to heavy use on stainless steel
Answer:	Absolutely, it can. However, if I were you I would attempt that job with a high tempered heat treated drill bit and a dab of cutting oil to preserve the bit. Good drilling to you and be safe please.

Product features

A Tool Box Necessity

Our step drill bits are constructed from traditional HSS combined with a titanium coating to make them even more durable. This also proves the capability and durability of the drill to last through multiple drillings on surfaces such as: plastic, aluminum, copper, stainless steel, and so much more.

Unique 2 Flute Design

Two flute design also lets the material particles escape easily for a much more clean drilling operation. With each step, you can feel the drill bit stop so you never drill bigger than you need to.

Stay Organized

Includes a sturdy blow molded case to store your drill bits when they are not in use and makes transport simple and easy.

Universal Shank Design

The tri-flatted shank is a great universal fit that will give you confidence while you work knowing that your drill bit is securely in place.

Engraved Sizes

Easily identify which size you need with the contrasted, laser engraved sizes inside the step drill bit flute.

Increased Cutting Speed

The split point tip is at 135 degrees which allows you to cut faster and the two flute design also lets the material particles escape easily for a much more clean drilling operation.

Product description

Wire brushes are used to remove rust, paint and weld spatter on all types of metal parts or surfaces.

From the Manufacturer

Century coarse wire brushes are for preparation of metal and rubber surfaces for adhesive bonding. Removal of rust, scale, slag, and paint. Deburring, light grinding and carbon cleaning. Plastic flash removal.

• Wire brushes are used to remove rust paint and weld spatter on all types of metal parts or surfaces
• Deburr and clean the inside and outside of pipes valves and other fittings
• 1/4" hex quick change shank
• .0118 crimped wire, coarse
• Type of wire is crimped

User questions & answers

Question:	I'm cleaning mortar off of old porous bricks. Which would be the best the fine or coarse brush
Answer:	You can. However, we would recommend a fine brush as aluminum is very soft and a coarse brush will remove surface very quickly. Our equivalent fine brush is item 76213.
Question:	Can you use these for a coarse clean before polishing aluminium
Answer:	My guess would be no... I would use something a bit less course than this.
Question:	Is this safe for chrome-plated Weber grill grates
Answer:	it a metal brush so yes ... I used it on my car restoration but I have to assume you have a metal boat and not rust stained fiberglass one
Question:	will it remove rust from a boat bottom
Answer:	I guess it depends on what you call "deep" but it has a chance of working. Maybe a combination of paint remover/thinner and this will be effective

Product features

Professionally Manufactured

Even wire count for balanced power brushing. Even wire distribution reduces vibration, operator fatigue and will increase tool life.

Solid-ring construction (Crimped Wire Brushes) holds each wire to a solid ring which ensures the brush runs smoother and longer with less vibration.

Solid mounting plates (Knot Wire Products) have evenly spaced holes to prevent knotted wire from moving on the brush for consistent power brushing.

Multi-Purpose

Remove rust, paint and weld spatter on all types of metal parts or surfaces.

Deburr and clean the inside and outside of pipes, valves and other fittings.

Perfect for cleaning engine heads and components.

1/4" hex quick change shanks are for use in all types of drills and die grinders.